Tag: European Shag

Extrinsic and intrinsic determinants of winter foragingand breeding phenology in a temperate seabird

European Shag (Phalacrocorax aristotelis) Science Article 2 abstract In temperate regions, winter presents animals with a number of challenges including depressed food abundance, increased daily energy requirements, higher frequency of extreme weather events and shortened day length. Overcoming these constraints is critical for overwintering survival and scheduling of future breeding of long-lived species and is […]

Chick mortality in European Shag Stictocarbo aristotelis related to food limitations during adverse weather events.

European Shag (Phalacrocorax aristotelis) Science Article 3 abstract This study analyses the mortality of chicks of the European Shag Stictocarbo aristotelis in the Cies Islands (NW Spain). Chick mortality on this island is the main cause of the yearly variation in chick production. By visiting the nests after hatching occurred we determined the periods of […]

Sex-specific growth in the European Shag Stictocarbo aristotelis, a sexually dimorphic seabird

European Shag (Phalacrocorax aristotelis) Science Article 1 abstract The European Shag Stictocarbo aristotelis is dimorphic in body size : males are 22% heavier than females . We used molecular techniques to sex of 25 male and 18 female chicks in colonies from the Cies Islands (NW Spain). Discriminant functions were then obtained based on morphometric […]

Morphometric similarities between central and peripheral populations of the European Shag Phalacrocorax aristotelis

European Shag (Phalacrocorax aristotelis) Science Article 5 abstract We compared morphometrics and discriminant functions for sexing European Shags Phalacrocorax aristotelis in a central (British) population and a peripheral (NW Iberia) population within its distribution range, to account for structural differences between populations and sexes. Overall, British shags were structurally larger than Iberian shags, except in […]

Parental age and offspring ectoparasite load in European Shags Stictocarbo aristotelis

European Shag (Phalacrocorax aristotelis) Science Article 4 abstract While age related improvements in breeding success have been reported in many avian species, the underlying mechanisms are not well understood. Ectoparasite load can have a significant deleterious effect on many aspects of host fitness. If younger breeders carry high parasite loads, and this has a detrimental […]

European Shag (Phalacrocorax aristotelis)

[order] SULIFORMES | [family] Phalacrocoracidae | [latin] Phalacrocorax aristotelis | [UK] European Shag | [FR] Cormoran huppe | [DE] Krahenscharbe | [ES] Cormoran Monudo | [NL] Kuifaalscholver Subspecies Monotypic species Genus The cosmopolitan genus Phalacrocorax of the Suliformes family includes thirty-five species frequenting coasts and islands. The face and throat are naked; the bill is […]